VR+CTA对脊柱变形患者的诊断及临床价值研究

目的探讨脊柱变形的VR+CTA影像学特征及临床价值。方法回顾性分析2013年1月-2015年11月经我治疗的38份脊柱变形患者的VR+CTA影像学资料及临床资料病例。结果通过VR+CTA检查显示,脊柱侧弯、旋转病例降主动脉经上胸段椎体(T5-7)前缘迂曲绕行至椎体右前方,并于L2椎体前缘向左前方走行;椎体破坏(结核)伴有侧弯的病例具有下胸段椎体内骨质破坏、增生、椎体变形等征象,动脉经上胸段椎体凹入后凸椎体,向下方椎体延行。脊柱变形患者血管充盈良好,壁无钙化斑,管腔形态正常,未见狭窄、扩张及充盈缺损。38例患者进行VR+CTA检查后,均能对脊柱情况及周围伴行脏器进行清晰显示,包括脊柱变形的位置和血管的走向。结论VR+CTA影像学特征能有效诊断脊柱变形部位、程度及与周围结构的关系,有利于患者选择恰当的临床治疗方案和预后评估,值得临床进一步推广和应用。

Three-dimensional CT angiography with volume rendering for the dignosis of multiple intracranial aneurysms

Objective: To evaluate the importance of 3D-CTA with volume rendering for the diagnosis of multiple intracranial aneurysms. Methods: Axial source images were obtained by helical CT scanning and reconstruction of 3D-CTA images was done by volume rendering technique in conjunction with multiplanar reformation. Results: In the past one year, there were 10 patients diagnosed as having multiple intracranial a-neurysms by 3D-CTA and altogether 24 aneurysms were visualized, including 10 small aneurysms (≤ 5mm. Three-dimensional CT angiography with volume rendering demonstrated aneurysms very well and provided useful information concerning the site, shape, size and spatial relationship with the surrounding vessels and bone anatomy. Conclusion: Three-dimensional CT angiography with volume rendering is a quick, reliable, and relatively noninvasive method for diagnosing multiple intracranial aneurysms. It delineates detailed aneurysmal morphology, and provides useful information for planning microsurgical approaches.

三维CT血管造影诊断多发性颅内动脉瘤

目的研究CT血管造影（CTA）及容积重建技术（VR）对多发性颅内动脉瘤的临床应用价值。方法采用Siemens Plus 16 Somatom Volume Zoom型容积CT扫描机获得原始图像，采用容积重建成像技术（VR）进行三维重建，并辅助运用多轴面重建（MPR）。结果在1年间，通过3D-CTA诊断多发性动脉瘤10例。容积重建成像CTA清晰显示颅内动脉瘤、载瘤动脉、动脉瘤的形状和大小及其与邻近结构的解剖关系，在部分病例上要优于DSA。结论容积重建成像CTA是一种可靠、无创的快速诊断颅内多发性动脉瘤的方法，为急症手术提供了详实的影像学资料，可帮助制定治疗方案。